Stirring apparatus

B - Operations – Transporting – 01 – F

Patent

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Details

B01F 7/16 (2006.01)

Patent

CA 2580808

A mixer capable of developing suitable stirring characteristics by forming a sufficient vertical circulation flow over the entire part of the inside of a tank, wherein an opening (4) is formed in a stirring blade (3) under the following conditions: (i) the ratio of the opening area of the opening (4) in the upper half (U) of the stirring blade (3) to the overall area of the upper part (U) of the stirring blade (3) (the opening rate in the upper half (U) of the stirring blade (3)) is 45 to 80%, (ii) the ratio of the opening area of the opening (4) in the lower half (D) of the stirring blade to the overall area of the lower half (D) of the stirring blade (3) (the opening rate in the lower half (D) of the stirring blade (3)) is 18 to 50%, and (iii) the ratio of the opening rate in the lower half (D) of the stirring blade (3) to the opening rate in the upper half (U) of the stirring blade (3) is 31 to 71%.

L~invention concerne un malaxeur capable de créer des caractéristiques de malaxage adéquates en formant un flux de circulation vertical suffisant sur la totalité de la partie intérieure d~une cuve, caractérisé en ce qu~une ouverture (4) est formée dans une lame d~agitation (3) dans les conditions suivantes : (i) le rapport entre l~aire de l~ouverture (4) dans la moitié supérieure (U) de la lame d~agitation (3) et l~aire totale de la moitié supérieure (U) de la lame d~agitation (3) (le taux d~ouverture dans la moitié supérieure (U) de la lame d~agitation (3)) est compris entre 45 et 80%, (ii) le rapport entre l~aire de l~ouverture (4) dans la moitié inférieure (D) de la lame d~agitation et l~aire totale de la moitié inférieure (D) de la lame d~agitation (3) (le taux d~ouverture dans la moitié inférieure (D) de la lame d~agitation (3)) est compris entre 18 et 50%, et (iii) le rapport entre le taux d~ouverture dans la moitié inférieure (D) de la lame d~agitation (3) et le taux d~ouverture dans la moitié supérieure (U) de la lame d~agitation (3) est compris entre 31 et 71%.

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